Initial import of lld

Change-Id: I3ba67eaea52b3a6670b70203cd4d98a3c9c41a46

external/bsd/llvm/dist/lld/utils/linker-script-test/linker-script-test.cpp

@@ -0,0 +1,55 @@
+//===- utils/linker-script-test/linker-script-test.cpp --------------------===//
+//
+//                             The LLVM Linker
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// \brief Tool for testing linker script parsing.
+///
+//===----------------------------------------------------------------------===//
+
+#include "lld/ReaderWriter/LinkerScript.h"
+
+#include "llvm/Support/PrettyStackTrace.h"
+#include "llvm/Support/Signals.h"
+
+using namespace llvm;
+using namespace lld;
+using namespace script;
+
+int main(int argc, const char **argv) {
+  llvm::sys::PrintStackTraceOnErrorSignal();
+  llvm::PrettyStackTraceProgram X(argc, argv);
+
+  {
+    llvm::OwningPtr<MemoryBuffer> mb;
+    if (error_code ec = MemoryBuffer::getFileOrSTDIN(argv[1], mb)) {
+      llvm::errs() << ec.message() << "\n";
+      return 1;
+    }
+    Lexer l(std::unique_ptr<MemoryBuffer>(mb.take()));
+    Token tok;
+    while (true) {
+      l.lex(tok);
+      tok.dump(llvm::outs());
+      if (tok._kind == Token::eof || tok._kind == Token::unknown)
+        break;
+    }
+  }
+  {
+    llvm::OwningPtr<MemoryBuffer> mb;
+    if (error_code ec = MemoryBuffer::getFileOrSTDIN(argv[1], mb)) {
+      llvm::errs() << ec.message() << "\n";
+      return 1;
+    }
+    Lexer l(std::unique_ptr<MemoryBuffer>(mb.take()));
+    Parser p(l);
+    LinkerScript *ls = p.parse();
+    if (ls)
+      ls->dump(llvm::outs());
+  }
+}